U.S. patent application number 17/427577 was filed with the patent office on 2022-04-21 for method and device for scheduling hybrid automatic repeat request.
This patent application is currently assigned to BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.. The applicant listed for this patent is BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.. Invention is credited to Yajun ZHU.
Application Number | 20220123876 17/427577 |
Document ID | / |
Family ID | 1000006104038 |
Filed Date | 2022-04-21 |
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United States Patent
Application |
20220123876 |
Kind Code |
A1 |
ZHU; Yajun |
April 21, 2022 |
METHOD AND DEVICE FOR SCHEDULING HYBRID AUTOMATIC REPEAT
REQUEST
Abstract
The present disclosure provides a method and a device for
scheduling a hybrid automatic repeat request. The method includes:
transmitting downlink data to user equipment (UE) in a first
channel occupation time; and transmitting a trigger instruction to
the UE in a second channel occupation time, in which the trigger
instruction is configured to instruct the UE to feed back a
reception result about the downlink data in the second channel
occupation time, and the trigger instruction includes at least one
of identifier information of the first channel occupation time, and
channel detection mechanism information of transmitting the
reception result.
Inventors: |
ZHU; Yajun; (Beijing,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
BEIJING XIAOMI MOBILE SOFTWARE CO., LTD. |
Beijing |
|
CN |
|
|
Assignee: |
BEIJING XIAOMI MOBILE SOFTWARE CO.,
LTD.
Beijing
CN
|
Family ID: |
1000006104038 |
Appl. No.: |
17/427577 |
Filed: |
February 1, 2019 |
PCT Filed: |
February 1, 2019 |
PCT NO: |
PCT/CN2019/074452 |
371 Date: |
July 30, 2021 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04L 5/0055 20130101;
H04L 1/1887 20130101 |
International
Class: |
H04L 1/18 20060101
H04L001/18; H04L 5/00 20060101 H04L005/00 |
Claims
1. A method for scheduling a hybrid automatic repeat request,
comprising: transmitting, by a base station, downlink data to a
user equipment (UE) during a first channel occupation time; and
transmitting, by the base station, a trigger instruction to the UE
during a second channel occupation time, wherein the trigger
instruction is configured to instruct the UE to feed back a
reception result about the downlink data during the second channel
occupation time, and the trigger instruction comprises at least one
of: identifier information of the first channel occupation time, or
channel detection mechanism information of transmitting the
reception result.
2. The method of claim 1, further comprising: before transmitting
downlink data to the UE in the first channel occupation time,
transmitting a scheduling instruction to the UE during the first
channel occupation time, wherein the scheduling instruction is
configured to instruct the UE to receive the trigger instruction
during the second channel occupation time.
3. The method of claim 2, wherein, the scheduling instruction
comprises at least one of: a receiving mode of the trigger
instruction, information of the second channel occupation time, or
indication information configured to instruct the UE to feed back
the reception result during channel occupation time of receiving
the trigger instruction.
4. The method of claim 3, wherein, the receiving mode of the
trigger instruction comprises at least one of: an aggregation level
required by receiving the trigger instruction, a time-frequency
resource position of receiving the trigger instruction, or a
signaling format of the trigger instruction.
5. The method of claim 1, further comprising: before transmitting
the trigger instruction to the UE, transmitting a radio network
temporary identifier (RNTI) to the UE; and scrambling the trigger
instruction with the RNTI.
6. The method of claim 1, wherein, the trigger instruction further
comprises identifier information of a downlink packet.
7. The method of claim 1, wherein, the first channel occupation
time comprises one or more channel occupation time.
8. A method for scheduling a hybrid automatic repeat request,
comprising: receiving, by a user equipment (UE), downlink data
transmitted by a base station during a first channel occupation
time; receiving, by the UE, a trigger instruction transmitted by
the base station during a second channel occupation time, the
trigger instruction comprising at least one of: identifier
information of the first channel occupation time, or channel
detection mechanism information of transmitting a reception result;
and feeding back a reception result about the downlink data during
the second channel occupation time according to the trigger
instruction.
9. The method of claim 8, further comprising: before receiving the
downlink data transmitted by the base station during the first
channel occupation time, receiving a scheduling instruction
transmitted by the base station during the first channel occupation
time, wherein the scheduling instruction is configured to instruct
receiving the trigger instruction during the second channel
occupation time.
10. The method of claim 9, wherein, the scheduling instruction
comprises at least one of: a receiving mode of the trigger
instruction, information of the second channel occupation time, or
indication information configured to instruct the UE to feed back
the reception result during channel occupation time of receiving
the trigger instruction.
11. The method of claim 10, wherein, the receiving mode of the
trigger instruction comprises at least one of: an aggregation level
required by receiving the trigger instruction, a time-frequency
resource position of receiving the trigger instruction, or a
signaling format of the trigger instruction; receiving the trigger
instruction transmitted by the base station during the second
channel occupation time comprises: receiving the trigger
instruction transmitted by the base station at the time-frequency
resource position according to the aggregation level in the second
channel occupation time.
12. The method of claim 8, further comprising: receiving a radio
network temporary identifier (RNTI) transmitted by the base
station; and descrambling the trigger instruction according to the
RNTI.
13. The method of claim 8, wherein, the trigger instruction further
comprises identifier information of a downlink packet.
14. The method of claim 8, wherein, the first channel occupation
time comprises one or more channel occupation time; when the first
channel occupation time comprises a plurality of channel occupation
time, feeding back the reception result about the downlink data
during the second channel occupation time comprises: feeding back
the reception result about the downlink data of the plurality of
channel occupation time during the second channel occupation
time.
15-21. (canceled)
22. A device for scheduling a hybrid automatic repeat request,
applied to a user equipment (UE) comprising: a processor; and a
memory, configured to store instructions executable by the
processor, wherein the processor is configured to execute the
instructions stored in the memory, so as to: receive downlink data
transmitted by a base station during a first channel occupation
time; receive a trigger instruction transmitted by the base station
during a second channel occupation time, the trigger instruction
comprising at least one of: identifier information of the first
channel occupation time, or channel detection mechanism information
of transmitting a reception result; and feed back a reception
result about the downlink data during the second channel occupation
time according to the trigger instruction.
23. The device of claim 22, wherein the processor is further
configured to: before receiving the downlink data transmitted by
the base station, receive a scheduling instruction transmitted by
the base station during the first channel occupation time, wherein
the scheduling instruction is configured to instruct receiving the
trigger instruction in the second channel occupation time.
24. The device of claim 23, wherein, the scheduling instruction
comprises at least one of: a receiving mode of the trigger
instruction, information of the second channel occupation time, or
indication information configured to instruct the UE to feed back
the reception result in the channel occupation time of receiving
the trigger instruction.
25. The device of claim 24, wherein the receiving mode of the
trigger instruction comprises at least one of: an aggregation level
required by receiving the trigger instruction, a time-frequency
resource position of receiving the trigger instruction, or a
signaling format of the trigger instruction; and the processor is
configured to: receive the trigger instruction transmitted by the
base station at the time-frequency resource position according to
the aggregation level in the second channel occupation time.
26. The device of claim 22, wherein the processor is further
configured to: receive a radio network temporary identifier (RNTI)
transmitted by the base station; and descramble the trigger
instruction with the RNTI.
27. (canceled)
28. The device of claim 22, wherein the first channel occupation
time comprises one or more channel occupation time; and the
processor is configured to: feed back the reception result about
the downlink data of the plurality of channel occupation time
during the second channel occupation time.
29-32. (canceled)
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application is the US national phase application of
International Application No. PCT/CN2019/074452, filed on Feb. 1,
2019, the entire content of which is incorporated herein by
reference for all purposes.
TECHNICAL FIELD
[0002] The present disclosure relates to the field of communication
technologies, and particularly to a method and a device for
scheduling a hybrid automatic repeat request.
BACKGROUND
[0003] In the related art, to ensure the reliability of
transmission, after a base station transmits downlink data to a
user equipment (UE), the UE is required to feed back acknowledgment
(ACK) and non-acknowledgment (NACK) to the base station according
to a reception situation. The base station may determine whether it
is necessary to retransmit data according to the feedback of the
UE. For an unlicensed frequency band of a fifth generation (5G)
mobile communication system, the channel occupation time is
limited. Therefore, the UE may not feedback ACK/NACK in time before
the end of the channel occupancy time. It is a problem to be solved
how the UE feeds back ACK/NACK.
SUMMARY
[0004] According to a first aspect of the present disclosure, a
method for scheduling a hybrid automatic repeat request is
provided. The method is applied to a base station side, and
includes: transmitting, by a base station, downlink data to a user
equipment (UE) during a first channel occupation time; and
transmitting, by the base station, a trigger instruction to the UE
during a second channel occupation time, in which the trigger
instruction is configured to instruct the UE to feed back a
reception result about the downlink data during the second channel
occupation time, and the trigger instruction includes at least one
of identifier information of the first channel occupation time or
channel detection mechanism information of transmitting the
reception result.
[0005] According to a second aspect of the present disclosure, a
method for scheduling a hybrid automatic repeat request is
provided. The method is applied to a UE side, and includes:
receiving, by a UE, downlink data transmitted by a base station
during a first channel occupation time; receiving, by the UE, a
trigger instruction transmitted by the base station during a second
channel occupation time, the trigger instruction including at least
one of identifier information of the first channel occupation time
or channel detection mechanism information of transmitting a
reception result; and feeding back a reception result about the
downlink data during the second channel occupation time according
to the trigger instruction.
[0006] According to a third aspect of the present disclosure, a
device for scheduling a hybrid automatic repeat request is
provided. The device includes: a processor; a memory configured to
store instructions executable by the processor; in which, the
processor is configured to: receive downlink data transmitted by a
base station during a first channel occupation time; receive a
trigger instruction transmitted by the base station during a second
channel occupation time, the trigger instruction comprising at
least one of: identifier information of the first channel
occupation time, or channel detection mechanism information of
transmitting a reception result; and feed back a reception result
about the downlink data during the second channel occupation time
according to the trigger instruction.
[0007] It should be noted that, the details above and in the
following are exemplary and illustrative, and do not constitute the
limitation on the present disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The drawings herein are incorporated into the specification
and constitute a part of the specification, show examples in
conformity with the present disclosure, and explain the principle
of the present disclosure together with the specification.
[0009] FIG. 1A is a flowchart illustrating a method for scheduling
a hybrid automatic repeat request according to one or more examples
of the present disclosure.
[0010] FIG. 1B is a flowchart illustrating a method for scheduling
a hybrid automatic repeat request according to one or more examples
of the present disclosure.
[0011] FIG. 2 is a diagram illustrating a time-frequency resource
according to one or more examples of the present disclosure.
[0012] FIG. 3 is a flowchart illustrating a method for scheduling a
hybrid automatic repeat request according to one or more examples
of the present disclosure.
[0013] FIG. 4A is a flowchart illustrating a method for scheduling
a hybrid automatic repeat request according to one or more examples
of the present disclosure.
[0014] FIG. 4B is a flowchart illustrating a method for scheduling
a hybrid automatic repeat request according to one or more examples
of the present disclosure.
[0015] FIG. 5 is a flowchart illustrating a method for scheduling a
hybrid automatic repeat request according to one or more examples
of the present disclosure.
[0016] FIG. 6A is a block diagram illustrating a device for
scheduling a hybrid automatic repeat request according to one or
more examples of the present disclosure.
[0017] FIG. 6B is a block diagram illustrating a device for
scheduling a hybrid automatic repeat request according to one or
more examples of the present disclosure.
[0018] FIG. 7 is a block diagram illustrating a device for
scheduling a hybrid automatic repeat request according to one or
more examples of the present disclosure.
[0019] FIG. 8A is a block diagram illustrating a device for
scheduling a hybrid automatic repeat request according to one or
more examples of the present disclosure.
[0020] FIG. 8B is a block diagram illustrating a device for
scheduling a hybrid automatic repeat request according to one or
more examples of the present disclosure.
[0021] FIG. 9 is a block diagram illustrating a third receiving
module according to one or more examples of the present
disclosure.
[0022] FIG. 10 is a block diagram illustrating a device for
scheduling a hybrid automatic repeat request according to one or
more examples of the present disclosure.
[0023] FIG. 11 is a block diagram illustrating a transmitting
module according to one or more examples of the present
disclosure.
[0024] FIG. 12 is a block diagram illustrating a device suitable
for scheduling a hybrid automatic repeat request according to one
or more examples of the present disclosure.
[0025] FIG. 13 is a block diagram illustrating a device suitable
for scheduling a hybrid automatic repeat request according to one
or more examples of the present disclosure.
DETAILED DESCRIPTION
[0026] The exemplary embodiments will be described in detail here,
and examples thereof are shown in the accompanying drawings. When
the following descriptions refer to the accompanying drawings,
unless otherwise indicated, the same numbers in different drawings
represent the same or similar elements. The implementations
described in the following exemplary embodiments do not represent
all the implementations consistent with the present disclosure.
Rather, they are merely examples of the device and method
consistent with some aspects of the present disclosure as detailed
in the appended claims.
[0027] In the related art, to ensure the reliability of
transmission, after a base station transmits downlink data to a
user equipment (UE), the UE is required to feed back acknowledgment
(ACK) and non-acknowledgment (NACK) to the base station according
to the reception situation. The base station may determine whether
it is necessary to retransmit data according to the feedback of the
UE. For an unlicensed frequency band of a fifth generation (5G)
mobile communication system, the channel occupation time is
limited. Therefore, the UE may not feedback ACK/NACK in time before
the end of the channel occupancy time. It is a problem to be solved
how the UE feeds back ACK/NACK.
[0028] Examples of the present disclosure may achieve a hybrid
automatic repeat request across channel occupation time (COT). A
scheduling instruction is added, and the base station informs the
UE to adopt a hybrid automatic repeat request (HARQ) across channel
occupation time through the scheduling instruction.
[0029] FIG. 1A is a flowchart illustrating a method for scheduling
a hybrid automatic repeat request according to an example of the
present disclosure. The method for scheduling a hybrid automatic
repeat request is applied to an access network device such as a
base station. As illustrated in FIG. 1, the method includes the
following steps 111 to 112.
[0030] At step 111, downlink data is transmitted to a UE in a first
channel occupation time.
[0031] At step 112, a trigger instruction is transmitted to the UE
in a second channel occupation time, in which the trigger
instruction is configured to instruct the UE to feed back a
reception result about the downlink data in the second channel
occupation time, and the trigger instruction includes at least one
of identifier information of the first channel occupation time and
channel detection mechanism information of transmitting the
reception result.
[0032] In this example, downlink data is transmitted to the UE in
the first channel occupation time, the trigger instruction is
transmitted to the UE in the second channel occupation time, and
the reception result fed back is received in the second channel
occupation time, thereby achieving a hybrid automatic repeat
request across channel occupation time. Moreover, a structure
design of the trigger instruction is provided in this example, and
the trigger instruction includes at least one of identifier
information of the first channel occupation time and channel
detection mechanism information of transmitting the reception
result.
[0033] In this example, with the trigger instruction, it is
possible to inform the UE the reception result corresponding to
downlink data in which channel occupation time is to be fed back.
The first channel occupation time and the second channel occupation
time are not necessarily two continuous channel occupation time,
and other channel occupation time may be provided therebetween. The
trigger instruction may include identifier information of a
plurality of first channel occupation time.
[0034] In this example, the trigger instruction may be configured
to inform the UE of the channel detection mechanism information of
transmitting the reception result. In an unlicensed frequency band,
in order to observe an LBT principle, the UE needs to detect a
time-frequency resource before transmitting the reception result.
Adopting which channel detection mechanism may be flexibly
configured by the trigger instruction, and may also be
preconfigured for the UE through other signaling. The channel
detection mechanism information may be channel detection mechanism
identifier information or channel detection mechanism index
information. Adopting the channel detection mechanism index
information may save a message length. Table 1 illustrates a
correspondence relationship between channel detection mechanism
identifier information and channel detection mechanism index
information. The base station may transmit the correspondence
relationship to the UE in advance through signaling such as an RRC
signaling. Then, the trigger instruction may carry only the channel
detection mechanism index information.
TABLE-US-00001 TABLE 1 Channel Detection Mechanism Channel
Detection Mechanism Index Information Identifier Information 00
Channel Detection Mechanism 1 01 Channel Detection Mechanism 2 10
Channel Detection Mechanism 3 . . . . . .
[0035] FIG. 1B is a flowchart illustrating a method for scheduling
a hybrid automatic repeat request according to an example of the
present disclosure. The method for scheduling a hybrid automatic
repeat request is applied to an access network device such as a
base station. As illustrated in FIG. 1B, the method includes the
following steps 101 to 103.
[0036] At step 101, a scheduling instruction is transmitted to the
UE in the first channel occupation time, in which the scheduling
instruction is configured to instruct the UE to receive the trigger
instruction in the second channel occupation time.
[0037] At step 102, downlink data is transmitted to the UE in the
first channel occupation time.
[0038] At step 103, the trigger instruction is transmitted to the
UE in the second channel occupation time, in which the trigger
instruction is configured to instruct the UE to feed back a
reception result about the downlink data in the second channel
occupation time, and the trigger instruction includes at least one
of identifier information of the first channel occupation time and
channel detection mechanism information of transmitting the
reception result.
[0039] In this example, as illustrated in FIG. 2, the base station
transmits downlink data in COT1 and predicts whether the UE can
feed back the reception result with respect to the downlink data in
COT1. For example, the end of COT1 is occupied by downlink data,
therefore, the UE cannot transmit the reception result (ACK/NACK)
in COT1. For another example, the base station obtains a processing
ability reported by the UE in advance, and determines that the UE
cannot transmit the reception result in COT1 according to the
processing ability of the UE. At this time, the base station may
determine to adopt an HARQ across channel occupation time. That is,
before transmitting downlink data, the base station transmits the
scheduling instruction 201 to the UE in COT1 and informs the UE to
adopt the HARQ across channel occupation time. The scheduling
instruction may be configured to instruct the UE to receive the
trigger instruction in second channel occupation time. The
scheduling instruction may include information of the second
channel occupation time, or may not include information of the
second channel occupation time. The scheduling instruction may be
further configured to instruct the UE to feed back the reception
result in the channel occupation time in which the trigger
instruction is received. Then, the base station transmits downlink
data 202 in COT1. The base station transmits the trigger
instruction 203 in COT2, to instruct the UE to feed back the
reception result about the downlink data in COT1 in the second
channel occupation time. The trigger instruction 203 is transmitted
in COT2, so that the UE may exactly know the moment that requires
to feed back HARQ information.
[0040] In an example, the scheduling instruction includes at least
one of a receiving mode of the trigger instruction, information of
the second channel occupation time, and indication information
configured to instruct the UE to feed back the reception result in
the channel occupation time of receiving the trigger
instruction.
[0041] In this example, the receiving mode of the trigger
instruction may be flexibly configured through the scheduling
instruction, so that the UE may receive the trigger instruction
better.
[0042] Of course, there may be another implementation. The base
station preconfigures the receiving method of the trigger
instruction for the UE through a radio resource control (RRC)
signaling. Or, the receiving method of the trigger instruction is
agreed through a system protocol.
[0043] In an example, the receiving mode of the trigger instruction
includes at least one of: an aggregation level required by
receiving the trigger instruction, and a time-frequency resource
position of receiving the trigger instruction and a signaling
format of the trigger instruction.
[0044] In this example, the UE may start to detect the trigger
instruction at the start position of the second channel occupation
time. Or, the UE is informed by the scheduling instruction the
time-frequency resource position of the trigger instruction, so
that the UE may receive the trigger instruction at the
time-frequency resource position, thereby reducing a detection
duration of the UE and saving power consumption of the UE.
[0045] In this example, the UE may be informed by the scheduling
instruction the aggregation level required by receiving the trigger
instruction, so that the UE may receive the trigger instruction
better.
[0046] There may be other information that helps the UE receive the
trigger instruction, which is applicable in this example.
[0047] In an example, the method further includes: step A1 to step
A2.
[0048] At step A1, before the trigger instruction is transmitted to
the UE, a radio network temporary identifier (RNTI) is transmitted
to the UE.
[0049] At step A2, before the trigger instruction is transmitted to
the UE, the trigger instruction is scrambled with the RNTI.
[0050] In this example, the trigger instruction may be scrambled
with the RNTI, to improve an anti-interference performance of the
trigger instruction, so that the UE receives the trigger
instruction better. In addition, the RNTI needs to be transmitted
to the UE in advance through the scheduling instruction or the RRC
signaling, so that the UE descrambles the trigger instruction.
[0051] There is no strict execution sequence between step A1 and
step A2.
[0052] The RNTI in this example may be a public RNTI, so that the
trigger instruction is suitable for a plurality of UEs, that is,
the base station transmits the trigger instruction to a plurality
of UEs. The plurality of UEs may be UEs in a multicast group.
[0053] In an example, the trigger instruction further includes
identifier information of a downlink packet.
[0054] In this example, the UE may be informed by the trigger
instruction the reception result about which downlink packet or
packets needs to be fed back. The identifier information of the
downlink packet may be an HARQ process identifier. The trigger
instruction may include identifier information of a plurality of
downlink packets. The trigger instruction carrying the identifier
information of the downlink packet is suitable for a single UE.
[0055] In an example, the first channel occupation time includes
one or more channel occupation time.
[0056] There may be a plurality of first occupation time in this
example, that is, the UE may feed back the reception result for
downlink data of a plurality of first channel occupation time in
the second channel occupation time. After transmitting downlink
data in COT1, the base station may predict whether there is an idle
time-frequency resource in COT2 for the UE to feed back the
reception result, and if no, continue to transmit downlink data.
Then, the base station predicts whether there is an idle
time-frequency resource in COT3 for the UE to feed back the
reception result, and if yes, transmits the trigger instruction in
COT3, and the UE feeds back the reception result about downlink
data of COT1 and COT2 in COT3.
[0057] The following illustrates an implementation process in an
example.
[0058] FIG. 3 is a flowchart illustrating a method for scheduling a
hybrid automatic repeat request according to an example of the
present disclosure. The method for scheduling a hybrid automatic
repeat request is applied to an access network device such as a
base station. As illustrated in FIG. 3, the method includes the
following steps 301 to 305.
[0059] At step 301, the RNTI is transmitted to the UE.
[0060] At step 302, the scheduling instruction is transmitted to
the UE in the first channel occupation time, in which the
scheduling instruction is configured to instruct the UE to receive
the trigger instruction in the second channel occupation time.
[0061] At step 303, downlink data is transmitted to the UE in first
channel occupation time.
[0062] At step 304, the trigger instruction is scrambled with the
RNTI.
[0063] At step 305, the trigger instruction is transmitted to the
UE in the second channel occupation time, in which the trigger
instruction is configured to instruct the UE to feed back the
reception result about the downlink data in the second channel
occupation time, and the trigger instruction includes at least one
of identifier information of the first channel occupation time and
channel detection mechanism information of transmitting the
reception result.
[0064] The above illustrates the implementation process at the base
station side, and the corresponding UE side is improved. The
following is an implementation process at the UE side.
[0065] FIG. 4A is a flowchart illustrating a method for scheduling
a hybrid automatic repeat request according to an example of the
present disclosure. The method for scheduling a hybrid automatic
repeat request is applied to a UE, which may be a mobile phone, a
computer, a digital broadcasting terminal, a messaging device, a
game console, a tablet device, a medical equipment, a fitness
equipment, a personal digital assistant, etc. As illustrated in
FIG. 4A, the method includes the following steps 411 to 413.
[0066] At step 411, downlink data transmitted by a base station is
received in a first channel occupation time.
[0067] At step 412, a trigger instruction transmitted by the base
station is received in a second channel occupation time, the
trigger instruction including at least one of identifier
information of the first channel occupation time and channel
detection mechanism information of transmitting a reception
result.
[0068] At step 413, a reception result about the downlink data is
fed back in the second channel occupation time according to the
trigger instruction.
[0069] In this example, the UE receives downlink data transmitted
by the base station in the first channel occupation time, and feeds
back the reception result about the downlink data in the second
channel occupation time, to achieve a hybrid automatic repeat
request across channel occupation time.
[0070] In this example, the UE learns the reception result
corresponding to the downlink data in which channel occupation time
is to be fed back according to identifier information of the first
channel occupation time. The UE may perform channel detection
according to the channel detection mechanism information indicated
by the trigger instruction, so as to transmit the reception
result.
[0071] FIG. 4B is a flowchart illustrating a method for scheduling
a hybrid automatic repeat request according to an example of the
present disclosure. The method for scheduling a hybrid automatic
repeat request is applied to a UE, which may be a mobile phone, a
computer, a digital broadcasting terminal, a messaging device, a
game console, a tablet device, a medical equipment, a fitness
equipment, a personal digital assistant, etc. As illustrated in
FIG. 4B, the method includes the following steps 401 to 404.
[0072] At step 401, a scheduling instruction transmitted by the
base station is received in the first channel occupation time, in
which the scheduling instruction is configured to instruct
receiving the trigger instruction in the second channel occupation
time.
[0073] At step 402, downlink data transmitted by the base station
is received in the first channel occupation time.
[0074] At step 403, the trigger instruction transmitted by the base
station is received in the second channel occupation time, in which
the trigger instruction includes at least one of identifier
information of the first channel occupation time and channel
detection mechanism information of transmitting the reception
result.
[0075] At step 404, the reception result about the downlink data is
fed back in the second channel occupation time according to the
trigger instruction.
[0076] In this example, the UE may learn that no reception result
needs to be transmitted in the first channel occupation time after
receiving the scheduling instruction. The UE normally receives
downlink data transmitted by the base station in the first channel
occupation time. Then, the UE waits to receive the trigger
instruction in the second channel occupation time. After the
trigger instruction is received, a channel detection is performed,
so that to the reception result may be transmitted as early as
possible.
[0077] In an example, the scheduling instruction includes at least
one of a receiving mode of the trigger instruction, information of
the second channel occupation time, and indication information
configured to instruct the UE to feed back the reception result in
the channel occupation time of receiving the trigger
instruction.
[0078] In this example, when the scheduling instruction includes
the receiving mode of the trigger instruction, the UE receives the
trigger instruction according to the receiving mode in the
scheduling instruction. When the scheduling instruction does not
include the receiving mode of the trigger instruction, the UE
receives the trigger instruction according to the receiving mode
preconfigured in other ways.
[0079] In an example, the receiving mode of the trigger instruction
includes at least one of: an aggregation level required by
receiving the trigger instruction, a time-frequency resource
position of receiving the trigger instruction and a signaling
format of the trigger instruction.
[0080] Step 403 includes step B.
[0081] At step B, the trigger instruction transmitted by the base
station is received at the time-frequency resource position
according to the aggregation level in the second channel occupation
time.
[0082] In this example, the UE receives the trigger instruction
transmitted by the base station at the time-frequency resource
position according to the aggregation level in the second channel
occupation time according to the receiving mode indicated by the
scheduling instruction. In this way, the trigger instruction may be
better received, to reduce wait time and save power consumption of
the device.
[0083] In an example, the method further includes step C1 to step
C2.
[0084] At step C1, a radio network temporary identifier (RNTI)
transmitted by the base station is received.
[0085] At step C2, the trigger instruction is descrambled according
to the RNTI.
[0086] In this example, the trigger instruction may be descrambled
with the RNTI, to improve an anti-interference performance of the
trigger instruction, so that the trigger instruction may be better
received. In addition, the UE may receive the RNTI in advance
through the scheduling instruction or the RRC signaling.
[0087] There is no strict execution sequence for step C1 and step
C2.
[0088] In an example, the trigger instruction further includes
identifier information of a downlink packet.
[0089] In this example, the UE learns the reception result
corresponding to which downlink packet needs to be fed back
according to identifier information of the downlink packet.
[0090] In an example, the first channel occupation time includes
one or more channel occupation time.
[0091] Step 404 includes step D.
[0092] At step D, the reception result about downlink data of the
plurality of channel occupation time is fed back in the second
channel occupation time.
[0093] In this example, after receiving downlink data of a
plurality of first channel occupation time, the UE may feed back
the reception result of the downlink data of the plurality of first
channel occupation time in the second channel occupation time.
[0094] The following illustrates an implementation process in an
example.
[0095] FIG. 5 is a flowchart illustrating a method for scheduling a
hybrid automatic repeat request according to an example of the
present disclosure. The method for scheduling a hybrid automatic
repeat request is applied to a UE, which may be a mobile phone, a
computer, a digital broadcasting terminal, a messaging device, a
game console, a tablet device, a medical equipment, a fitness
equipment, a personal digital assistant, etc. As illustrated in
FIG. 5, the method includes the following steps 501 to 504.
[0096] At step 501, the scheduling instruction transmitted by the
base station is received in the first channel occupation time, in
which the scheduling instruction is configured to instruct
receiving the trigger instruction in the second channel occupation
time.
[0097] At step 502, downlink data transmitted by the base station
is received in first channel occupation time.
[0098] At step 503, the radio network temporary identifier (RNTI)
transmitted by the base station is received.
[0099] At step 504, the trigger instruction transmitted by the base
station is received in the second channel occupation time, the
trigger instruction including at least one of identifier
information of the first channel occupation time and channel
detection mechanism information of transmitting the reception
result.
[0100] At step 505, the trigger instruction is descrambled
according to the RNTI.
[0101] At step 506, the reception result about the downlink data is
fed back in the second channel occupation time according to the
trigger instruction.
[0102] The above examples may be combined freely according to
actual requirement.
[0103] The followings are device examples of the present
disclosure, which may be configured to implement the method
examples of the present disclosure.
[0104] FIG. 6A is a block diagram illustrating a device for
scheduling a hybrid automatic repeat request according to an
example of the present disclosure. The device may be implemented as
a part or all of an electronic device through software, hardware or
their combination. The device is applied to a base station side. As
illustrated in FIG. 6A, the device for scheduling a hybrid
automatic repeat request includes a first transmitting module 601
and a second transmitting module 602.
[0105] The first transmitting module 601 is configured to transmit
downlink data to a UE in a first channel occupation time.
[0106] The second transmitting module 602 is configured to transmit
a trigger instruction to the UE in a second channel occupation
time, in which the trigger instruction is configured to instruct
the UE to feed back a reception result about the downlink data in
the second channel occupation time, and the trigger instruction
includes at least one of identifier information of the first
channel occupation time and channel detection mechanism information
of transmitting a reception result.
[0107] In an example, as illustrated in FIG. 6B, the device further
includes a third transmitting module 603.
[0108] The third transmitting module 603 is configured to, before
downlink data is transmitted to the UE, transmit a scheduling
instruction to the UE in the first channel occupation time, in
which the scheduling instruction is configured to instruct the UE
to receive the trigger instruction in the second channel occupation
time.
[0109] In an example, the scheduling instruction includes at least
one of a receiving mode of the trigger instruction, information of
the second channel occupation time, and indication information
configured to instruct the UE to feed back the reception result in
the channel occupation time of receiving the trigger
instruction.
[0110] In an example, the receiving mode of the trigger instruction
includes at least one of: an aggregation level required by
receiving the trigger instruction, a time-frequency resource
position of receiving the trigger instruction and a signaling
format of the trigger instruction.
[0111] In an example, as illustrated in FIG. 7, the device further
includes a scrambling module 701 and a fourth transmitting module
702.
[0112] The fourth transmitting module 702 is configured to, before
the trigger instruction is transmitted to the UE, transmit a radio
network temporary identifier (RNTI) to the UE.
[0113] The scrambling module 701 is configured to scramble the
trigger instruction with the RNTI.
[0114] In an example, the trigger instruction further includes
identifier information of a downlink packet.
[0115] In an example, the first channel occupation time includes
one or more channel occupation time.
[0116] FIG. 8A is a block diagram illustrating a device for
scheduling a hybrid automatic repeat request according to an
example of the present disclosure. The device may be implemented as
a part or all of an electronic device through software, hardware or
their combination. The device is applied to a UE side. As
illustrated in FIG. 8A, the device for scheduling a hybrid
automatic repeat request includes a first receiving module 801, a
second receiving module 802 and a transmitting module 803.
[0117] The first receiving module 801 is configured to receive
downlink data transmitted by a base station in a first channel
occupation time.
[0118] The second receiving module 802 is configured to receive a
trigger instruction transmitted by the base station in a second
channel occupation time, the trigger instruction including at least
one of identifier information of the first channel occupation time
and channel detection mechanism information of transmitting a
reception result.
[0119] The transmitting module 803 is configured to feed back a
reception result about the downlink data in the second channel
occupation time according to the trigger instruction.
[0120] In an example, as illustrated in FIG. 8B, the device further
includes a third receiving module 804.
[0121] The third receiving module 804 is configured to, before
downlink data transmitted by the base station is received, receive
a scheduling instruction transmitted by the base station in the
first channel occupation time, in which the scheduling instruction
is configured to instruct receiving the trigger instruction in the
second channel occupation time.
[0122] In an example, the scheduling instruction includes at least
one of a receiving mode of the trigger instruction, information of
the second channel occupation time, and indication information
configured to instruct the UE to feed back the reception result in
the channel occupation time of receiving the trigger
instruction.
[0123] In an example, the receiving mode of the trigger instruction
includes at least one of: an aggregation level required by
receiving the trigger instruction, a time-frequency resource
position of receiving the trigger instruction and a signaling
format of the trigger instruction.
[0124] As illustrated in FIG. 9, the second receiving module 802
includes a receiving submodule 901.
[0125] The receiving submodule 901 is configured to receive the
trigger instruction transmitted by the base station at the
time-frequency resource position according to the aggregation level
in the second channel occupation time.
[0126] In an example, as illustrated in FIG. 10, the device further
includes a fourth receiving module 1001 and a descrambling module
1002.
[0127] The fourth receiving module 1001 is configured to receive a
radio network temporary identifier (RNTI) transmitted by the base
station.
[0128] The descrambling module 1002 is configured to descramble the
trigger instruction with the RNTI.
[0129] In an example, the trigger instruction further includes
identifier information of a downlink packet.
[0130] In an example, the first channel occupation time includes
one or more channel occupation time.
[0131] As illustrated in FIG. 11, the transmitting module 803
includes a transmitting submodule 1101.
[0132] The transmitting submodule 1101 is configured to feed back
the reception result about the downlink data of the plurality of
channel occupation time in the second channel occupation time.
[0133] With regard to the device in the above examples, the
specific way in which each module performs the operation has been
described in detail in the examples of the method and will not be
elaborated here.
[0134] FIG. 12 is a block diagram illustrating a device for
scheduling a hybrid automatic repeat request according to an
example of the present disclosure. For example, the device 1200 may
be a mobile phone, a computer, a digital broadcasting terminal, a
messaging device, a game console, a tablet device, a medical
equipment, a fitness equipment, a personal digital assistant,
etc.
[0135] The device 1200 may include one or more components of a
processing component 1202, a memory 1204, a power supply component
1206, a multimedia component 1208, an audio component 1210, an
input/output (I/O) interface 1212, a sensor component 1214, and a
communication component 1216.
[0136] The processing component 1202 generally controls the whole
operation of the device 1200, such as the operations related to
display, phone call, data communication, camera operation and
recording operation. The processing component 1202 may include one
or more processors 1220 to perform instructions, to complete all or
part of steps of the above method. In addition, the processing
component 1202 may include one or more modules for the convenience
of interaction between the processing component 1202 and other
components. For example, the processing component 1202 may include
a multimedia module for the convenience of interaction between the
multimedia component 1208 and the processing component 1202.
[0137] The memory 1204 is configured to store all types of data to
support the operation of the device 1200. Examples of the data
include the instructions of any applications or methods operated on
the device 1200, contact data, phone book data, messages, pictures,
videos, etc. The memory 1204 may be implemented by any type of
volatile or non-volatile storage devices or their combination, such
as Static Random Access Memory (SRAM), Electrically Erasable
Programmable Read-Only Memory (EEPROM), Erasable Programmable
Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM),
Read-Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic
Disk or Optical Disk.
[0138] The power supply component 1206 may provide power supply for
all components of the device 1200. The power supply component 1206
may include power supply management system, one or more power
supplies, and other units related to generating, managing and
distributing power for the device 1200.
[0139] The multimedia component 1208 includes an output interface
screen provided between the device 1200 and the user. In some
examples, a screen may include a liquid crystal display (LCD) and a
touch panel (TP). When the screen includes a touch panel, the
screen may be implemented as a touch screen to receive input
signals from the user. The touch panel includes one or more touch
sensors to sense touching, sliding and gestures on the touch panel.
The touch sensor may not only sense the boundary of touch or slide
action, but also detect the duration and pressure related to the
touching or sliding operation. In some examples, the multimedia
component 1208 includes a front camera and/or a rear camera. When
the device 1200 is in operation mode, such as shooting mode or
video mode, the front camera or the rear camera may receive the
external multimedia data. Each front camera and rear camera may be
a fixed optical lens system or an optical lens system with focal
length and optical zoom capacity.
[0140] The audio component 1210 is configured as output and/or
input signal. For example, the audio component 1210 includes a
microphone (MIC). When the device 1200 is in operation mode, such
as call mode, record mode, and speech recognition mode, the
microphone is configured to receive the external audio signals. The
audio signals received may be further stored in the memory 1204 or
transmitted via the communication component 1216. In some examples,
the audio component 1210 further includes a speaker configured to
output an audio signal.
[0141] The I/O interface 1212 provides an interface for the
processing component 1202 and the peripheral interface module, and
the peripheral interface module may be a keyboard, a click wheel, a
button, etc. The buttons may include but not limited to a home
button, a volume button, a start button and a lock button.
[0142] The sensor component 1214 includes one or more sensors,
configured to provide various aspects of status assessment for the
device 1200. For example, the sensor component 1214 may detect the
on/off state of the device 1200 and the relative positioning of the
component. For example, the component is a display and a keypad of
the device 1200. The sensor component 1214 may further detect the
location change of the device 1200 or one component of the device
1200, the presence or absence of contact between the user and the
device 1200, the orientation or acceleration/deceleration of the
device 1200, and the temperature change of the device 1200. The
sensor component 1214 may include a proximity sensor, which is
configured to detect the existence of the objects nearby without
any physical contact. The sensor component 1214 may further include
a light sensor such as CMOS or CCD image sensor, which is
configured to use in imaging applications. In some examples, the
sensor component 1214 may further include an acceleration
transducer, a gyroscope sensor, a magnetic sensor, a pressure
sensor or a temperature sensor.
[0143] The communication component 1216 is configured for the
convenience of wire or wireless communication between the device
1200 and other devices. The device 1200 may access wireless
networks based on communication standard, such as WiFi, 2G or 3G,
or their combination. In an example of the present disclosure, the
communication component 1216 receives broadcast signals or
broadcast-related information from an external broadcast management
system via a broadcast channel. In an example of the present
disclosure, the communication component 1216 further includes a
near field communication (NFC) module to facilitate short-range
communication. For example, an NFC module may be implemented based
on radio frequency identification (RFID) technology, infrared data
association (IRDA) technology, ultra-wideband (UWB) technology,
Bluetooth (BT) technology and other technologies.
[0144] In an example of the present disclosure, the device 1200 may
be implemented by one or more application specific integrated
circuits (ASIC), digital signal processors (DSP), digital signal
processing devices (DSPD), programmable logic devices (PLD), field
programmable gate arrays (FPGA), controllers, microcontrollers,
microprocessors or other electronics components, which is
configured to perform the above method.
[0145] In an example of the present disclosure, a non-temporary
computer readable storage medium is further provided, for example,
the memory 1204 including instructions, in which the instructions
may be executed by the processor 1220 of the device 1200 to
complete the above methods. For example, the non-temporary computer
readable storage medium may be a ROM, a random access memory (RAM),
a CD-ROM, a magnetic tape, a floppy disk, an optical data storage
device, etc.
[0146] In an example of the present disclosure, a device for
scheduling a hybrid automatic repeat request is provided. The
device includes a processor; a memory configured to store
instructions executable by the processor; in which, the processor
is configured to: receive downlink data transmitted by a base
station in a first channel occupation time; receive a trigger
instruction transmitted by the base station in a second channel
occupation time, the trigger instruction including at least one of
identifier information of the first channel occupation time and
channel detection mechanism information of transmitting a reception
result; and feeding back a reception result about the downlink data
in the second channel occupation time according to the trigger
instruction.
[0147] The above processor may be further configured as: the
scheduling instruction includes at least one of a receiving mode of
the trigger instruction, information of the second channel
occupation time, and indication information configured to instruct
the UE to feed back the reception result in the channel occupation
time of receiving the trigger instruction.
[0148] The above processor may be further configured as: the
receiving mode of the trigger instruction includes at least one of:
an aggregation level required by receiving the trigger instruction,
a time-frequency resource position of receiving the trigger
instruction and a signaling format of the trigger instruction;
receiving the trigger instruction transmitted by the base station
in second channel occupation time includes: receiving the trigger
instruction transmitted by the base station at the time-frequency
resource position according to the aggregation level in the second
channel occupation time.
[0149] The above processor may be further configured as: the method
further includes: receiving a radio network temporary identifier
(RNTI) transmitted by the base station; descrambling the trigger
instruction according to the RNTI.
[0150] The above processor may be further configured as: the
trigger instruction further includes identifier information of a
downlink packet.
[0151] The above processor may be further configured as: the first
channel occupation time includes one or more channel occupation
time; when the first channel occupation time includes a plurality
of channel occupation time, feeding back the reception result about
the downlink data in the second channel occupation time includes:
feeding back the reception result about the downlink data of the
plurality of channel occupation time in the second channel
occupation time.
[0152] A computer readable storage medium is further provided. When
the instruction in the computer readable storage medium is executed
by the processor of the device, the device is caused to execute the
above method for scheduling a hybrid automatic repeat request. The
method includes: receiving downlink data transmitted by a base
station in a first channel occupation time; receiving a trigger
instruction transmitted by the base station in a second channel
occupation time, the trigger instruction including at least one of
identifier information of the first channel occupation time and
channel detection mechanism information of transmitting a reception
result; feeding back a reception result about the downlink data in
the second channel occupation time according to the trigger
instruction.
[0153] The instruction in the storage medium may further include:
the scheduling instruction includes at least one of a receiving
mode of the trigger instruction, information of the second channel
occupation time, and indication information configured to instruct
the UE to feed back the reception result in the channel occupation
time of receiving the trigger instruction.
[0154] The instruction in the storage medium may further include:
the receiving mode of the trigger instruction includes at least one
of: an aggregation level required by receiving the trigger
instruction, a time-frequency resource position of receiving the
trigger instruction and a signaling format of the trigger
instruction; receiving the trigger instruction transmitted by the
base station in second channel occupation time includes: receiving
the trigger instruction transmitted by the base station at the
time-frequency resource position according to the aggregation level
in the second channel occupation time.
[0155] The instruction in the storage medium may further include:
the method further includes: receiving a radio network temporary
identifier (RNTI) transmitted by the base station; descrambling the
trigger instruction according to the RNTI.
[0156] The instruction in the storage medium may further include:
the trigger instruction further includes identifier information of
a downlink packet.
[0157] The instruction in the storage medium may further include:
the first channel occupation time includes one or more channel
occupation time; when the first time-frequency resource includes a
plurality of channel occupation time, feeding back the reception
result about the downlink data in the second channel occupation
time includes: feeding back the reception result about the downlink
data of the plurality of channel occupation time in the second
channel occupation time.
[0158] FIG. 13 is a block diagram illustrating a device 1300 for
synchronizing data according to an example of the present
disclosure. For example, the device 1300 may be provided as a
computer. Referring to FIG. 13, the device 1300 includes a
processing component 1322, which further include one or more
processors, and memory resources represented by the memory 1332,
which are configured to store instructions executable by the
processing component 1322, for example, application programs. The
application programs stored in the memory 1332 may include one or
more modules each of which corresponds to a set of instructions. In
addition, the processing component 1322 is configured to execute
instructions, to implement the above method.
[0159] The device 1300 may further include one power supply
component 1326 configured to execute power management of the device
1300, one wired or wireless network interface 1350 configured to
connect the device 1300 to a network, and one input/output (I/O)
interface 1358. The device 1300 may operate an operating system
stored in the memory 1332, for example, Windows Server.TM., Mac OS
X.TM., Unix.TM., Linux.TM., FreeBSD.TM..
[0160] In an example of the present disclosure, a device for
scheduling a hybrid automatic repeat request is provided. The
device includes: a processor; a memory configured to store
instructions executable by the processor. The processor is
configured to: transmit downlink data to a UE in a first channel
occupation time; transmit a trigger instruction to the UE in a
second channel occupation time, in which the trigger instruction is
configured to instruct the UE to feed back a reception result about
the downlink data in the second channel occupation time, and the
trigger instruction includes at least one of identifier information
of the first channel occupation time and channel detection
mechanism information of transmitting the reception result.
[0161] The above processor may be further configured as: the
scheduling instruction includes at least one of a receiving mode of
the trigger instruction, information of the second channel
occupation time, and indication information configured to instruct
the UE to feed back the reception result in the channel occupation
time of receiving the trigger instruction.
[0162] The above processor may be further configured as: the
receiving mode of the trigger instruction includes at least one of:
an aggregation level required by receiving the trigger instruction,
a time-frequency resource position of receiving the trigger
instruction and a signaling format of the trigger instruction.
[0163] The above processor may be further configured as: the method
further includes: before transmitting the trigger instruction to
the UE, scrambling the trigger instruction with the RNTI;
transmitting the RNTI to the UE.
[0164] The above processor may be further configured as: the
trigger instruction further includes identifier information of a
downlink packet.
[0165] The above processor may be further configured as: the first
channel occupation time includes one or more channel occupation
time.
[0166] A computer readable storage medium is further provided. When
the instructions in the computer readable storage medium are
executed by the processor of the device, the device is caused to
implement the above method for scheduling a hybrid automatic repeat
request. The method includes: transmitting downlink data to a UE in
a first channel occupation time; transmitting a trigger instruction
to the UE in a second channel occupation time, in which the trigger
instruction is configured to instruct the UE to feed back a
reception result about the downlink data in the second channel
occupation time, and the trigger instruction includes at least one
of identifier information of the first channel occupation time and
channel detection mechanism information of transmitting the
reception result.
[0167] The instructions in the storage medium may further include:
the scheduling instruction includes at least one of a receiving
mode of the trigger instruction, information of the second channel
occupation time, and indication information configured to instruct
the UE to feed back the reception result in the channel occupation
time of receiving the trigger instruction.
[0168] The instructions in the storage medium may further include:
the receiving mode of the trigger instruction includes at least one
of: an aggregation level required by receiving the trigger
instruction, a time-frequency resource position of receiving the
trigger instruction and a signaling format of the trigger
instruction.
[0169] The instructions in the storage medium may further include:
the method further includes: before transmitting the trigger
instruction to the UE, scrambling the trigger instruction with the
RNTI; transmitting the RNTI to the UE.
[0170] The instructions in the storage medium may further include:
the trigger instruction further includes identifier information of
a downlink packet.
[0171] The instructions in the storage medium may further include:
the first channel occupation time includes one or more channel
occupation time.
[0172] According to another aspect of the present disclosure, a
device for scheduling a hybrid automatic repeat request is
provided. The device includes: a processor; a memory configured to
store instructions executable by the processor; in which, the
processor is configured to: receive downlink data transmitted by a
base station in a first channel occupation time; receive a trigger
instruction transmitted by the base station in a second channel
occupation time, the trigger instruction including at least one of
identifier information of the first channel occupation time and
channel detection mechanism information of transmitting a reception
result; and feeding back a reception result about the downlink data
in the second channel occupation time according to the trigger
instruction.
[0173] According to another aspect of the present disclosure, a
computer readable storage medium with computer instructions stored
thereon is provided, in which the instructions are configured to
implement the method at the base station side when executed by the
processor.
[0174] According to yet another aspect of the present disclosure, a
computer readable storage medium with computer instructions stored
thereon is provided, in which the instructions are configured to
implement the method at the UE side when executed by the
processor.
[0175] After considering the specification and practicing the
disclosure herein, those skilled in the art will easily think of
other examples of the present application. The present application
is intended to cover any variations, usages, or adaptive changes of
the present application. These variations, usages, or adaptive
changes follow the general principles of the present application
and include common knowledge or conventional technical means in the
technical field not disclosed by the present application. The
description and the examples are to be regarded as exemplary only,
and the true scope and spirit of the present application are
referred to the appended claims.
[0176] It should be understood that the present invention is not
limited to the precise structure described above and shown in the
drawings, and various modifications and changes may be made without
departing from its scope. The scope of the present application is
only limited by the appended claims.
* * * * *